%0 Journal Article %T The multi-wave seismic acquisition method and applied result in Ken 71 area
垦71地区多波采集方法研究及应用效果 %A CAO Guo-bin %A LI Yun-wei %A CUI Ru-guo %A
曹国滨 %A 李云伟 %A 崔汝国 %J 地球物理学进展 %D 2007 %I %X The S/N ratio and resolution of multi-wave multi-component seismic acquisition in Shengli prospect area are both lower several years,so the applied effect is not good.Therefore,we study the multi-wave acquisition techniques in Ken 71 area as the leading tentative zone.First,by analyzing the distribution of converted-wave with the help of single three-component geophone and conventional receivers area arrays,we obtain that the reflection of the converted interface is strong,and the feature of converted-wave is obvious,and the ratio of VS/VP is about 1/2;then,by doing the various array analysis of digital three-component geophone in laboratory,we stack the super-bins,and effectively improve the S/N ratio with little effect on resolution;finally,we use extended array of three-component geophone to design the optimum offset for converted-wave and use tracing shot perpendicular to the array to design the optimum off-line distance,and obtain the optimum layout parameters of multi-wave acquisition in the area.With the above reasonable design and various experiment studies in Ken 71 area,we obtain that the resolution of Z component section for digital geophone is obviously higher than that of P wave section for conventional receiver,which has great meanings for the identification of mini-fault and micro-structure; meanwhile,the strong energy of the converted waves,high S/N ratio and resolution make we acquire preferable effect in multi-wave acquisition. %K multi-wave acquisition %K converted interface %K super-bin stack %K optimum offset %K optimum off-line distance %K resolution %K S/N ratio
多波采集 %K 转换界面 %K 超线元叠加 %K 最佳偏移距 %K 最佳非纵距 %K 分辨率 %K 信噪比 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=65CE641AB2DEAAF8B2D39ECB6B6B6C80&aid=628823D8A234D91AB01DD3A5D6C0AAD5&yid=A732AF04DDA03BB3&vid=BC12EA701C895178&iid=94C357A881DFC066&sid=C32BEECEF5323D34&eid=CA590345B99F3387&journal_id=1004-2903&journal_name=地球物理学进展&referenced_num=2&reference_num=20